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//////////////////////////////////////////////////////////////////////////////
//
// (C) Copyright Ion Gaztanaga 2004-2013. Distributed under the Boost
// Software License, Version 1.0. (See accompanying file
// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
// See http://www.boost.org/libs/container for documentation.
//
//////////////////////////////////////////////////////////////////////////////
#include <boost/container/small_vector.hpp>
#include <boost/core/lightweight_test.hpp>
#include <boost/assert.hpp>
using namespace boost::container;
const std::size_t Capacity = 10u;
void test_alignment()
{
{ //extended alignment
const std::size_t extended_alignment = sizeof(int)*4u;
BOOST_STATIC_ASSERT(extended_alignment > dtl::alignment_of<int>::value);
#if !defined(BOOST_NO_CXX11_TEMPLATE_ALIASES)
using options_t = small_vector_options_t< inplace_alignment<extended_alignment> >;
#else
typedef small_vector_options
< inplace_alignment<extended_alignment> >::type options_t;
#endif
small_vector<int, Capacity, void, options_t> v;
v.resize(v.capacity());
BOOST_ASSERT((reinterpret_cast<std::size_t>(&v[0]) % extended_alignment) == 0);
}
{ //default alignment
#if !defined(BOOST_NO_CXX11_TEMPLATE_ALIASES)
using options_t = small_vector_options_t< inplace_alignment<0> >;
#else
typedef small_vector_options< inplace_alignment<0> >::type options_t;
#endif
small_vector<int, Capacity, void, options_t> v;
v.resize(v.capacity());
BOOST_ASSERT((reinterpret_cast<std::size_t>(&v[0]) % dtl::alignment_of<int>::value) == 0);
}
}
void test_growth_factor_50()
{
#if !defined(BOOST_NO_CXX11_TEMPLATE_ALIASES)
using options_t = small_vector_options_t< growth_factor<growth_factor_50> >;
#else
typedef small_vector_options
< growth_factor<growth_factor_50> >::type options_t;
#endif
small_vector<int, Capacity, new_allocator<int>, options_t> v;
v.resize(5);
v.resize(v.capacity());
std::size_t old_capacity = v.capacity();
v.push_back(0);
std::size_t new_capacity = v.capacity();
BOOST_TEST(new_capacity == old_capacity + old_capacity/2);
}
void test_growth_factor_60()
{
#if !defined(BOOST_NO_CXX11_TEMPLATE_ALIASES)
using options_t = small_vector_options_t< growth_factor<growth_factor_60> >;
#else
typedef small_vector_options
< growth_factor<growth_factor_60> >::type options_t;
#endif
small_vector<int, Capacity, new_allocator<int>, options_t> v;
v.resize(5);
v.resize(v.capacity());
std::size_t old_capacity = v.capacity();
v.push_back(0);
std::size_t new_capacity = v.capacity();
BOOST_TEST(new_capacity == old_capacity + 3*old_capacity/5);
}
void test_growth_factor_100()
{
#if !defined(BOOST_NO_CXX11_TEMPLATE_ALIASES)
using options_t = small_vector_options_t< growth_factor<growth_factor_100> >;
#else
typedef small_vector_options
< growth_factor<growth_factor_100> >::type options_t;
#endif
small_vector<int, Capacity, new_allocator<int>, options_t> v;
v.resize(5);
v.resize(v.capacity());
std::size_t old_capacity = v.capacity();
v.push_back(0);
std::size_t new_capacity = v.capacity();
BOOST_TEST(new_capacity == 2*old_capacity);
}
int main()
{
test_alignment();
test_growth_factor_50();
test_growth_factor_60();
test_growth_factor_100();
return ::boost::report_errors();
}
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